package com.itheima.reggie.service.impl;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.IdWorker;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.dao.OrderMapper;
import com.itheima.reggie.pojo.*;
import com.itheima.reggie.service.OrderDetailService;
import com.itheima.reggie.service.OrderService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;

@Service
public class OrderServiceImpl extends ServiceImpl<OrderMapper, Orders> implements OrderService {


    @Autowired
    private  ShoppingCartServiceImpl shoppingCartService;

    @Autowired
    private UserServiceImpl userService;

    @Autowired
    private AddressBookServiceImpl addressBookService;

    @Autowired
    private  ThreadLocal threadLocal;

    @Autowired
    private OrderDetailService orderDetailService;

    @Transactional
    @Override
    public void submit(Orders orders) {

        Long userId = (Long) threadLocal.get();

        LambdaQueryWrapper<ShoppingCart> queryWrapper = new LambdaQueryWrapper<>();

        queryWrapper.eq(ShoppingCart::getUserId,userId);

        List<ShoppingCart> one = shoppingCartService.list(queryWrapper);

        if (one==null)
            throw new CustomException("购物车为空");

        User user = userService.getById(userId);

        Long bookId = orders.getAddressBookId();

        AddressBook addressBook = addressBookService.getById(bookId);

        if (addressBook==null)
            throw new CustomException("地址为空");

        long id = IdWorker.getId();

        AtomicInteger amount = new AtomicInteger(0);

        List<OrderDetail> order = one.stream().map(item -> {
            OrderDetail orderDetail = new OrderDetail();
            orderDetail.setOrderId(id);
            orderDetail.setNumber(item.getNumber());
            orderDetail.setDishFlavor(item.getDishFlavor());
            orderDetail.setDishId(item.getDishId());
            orderDetail.setSetmealId(item.getSetmealId());
            orderDetail.setName(item.getName());
            orderDetail.setImage(item.getImage());
            orderDetail.setAmount(item.getAmount());

            amount.addAndGet(item.getAmount().multiply(new BigDecimal(item.getNumber())).intValue());
            return orderDetail;
        }).collect(Collectors.toList());

        orders.setId(id);
        orders.setOrderTime(LocalDateTime.now());
        orders.setCheckoutTime(LocalDateTime.now());
        orders.setStatus(2);
        orders.setAmount(new BigDecimal(amount.get()));//总金额
        orders.setUserId(userId);
        orders.setNumber(String.valueOf(id));
        orders.setUserName("lisi");
        orders.setConsignee(addressBook.getConsignee());
        orders.setPhone(addressBook.getPhone());
        orders.setAddress((addressBook.getProvinceName() == null ? "" : addressBook.getProvinceName())
                + (addressBook.getCityName() == null ? "" : addressBook.getCityName())
                + (addressBook.getDistrictName() == null ? "" : addressBook.getDistrictName())
                + (addressBook.getDetail() == null ? "" : addressBook.getDetail()));

        orders.setNumber(String.valueOf(id));

        this.save(orders);

        orderDetailService.saveBatch(order);// OrdersDetail    OrderDetail

        shoppingCartService.remove(queryWrapper);
    }
}
